Attachment Ability and Melanoma Inhibitory Activity mRNA Expression Level Changes in Murine B16-F10 Melanoma Cells Post Nanosecond Electric Pulses

<p>The effects of high-voltage nanosecond electric pulses (nsEPs) on metastatic melanoma are still unclear. Hence, we applied one, two, three, and four 300 ns 40 kV/cm pulses to murine B16-F10 melanoma cells. Cell attachment ability was determined by comparing the number of floating cells and the percentage of attached cells. Melanoma inhibitory activity (MIA) is a secretory protein that is highly correlated with the malignancy and metastasis of malignant melanomas. We used MIA as our target to evaluate the effect of nsEPs on metastasis. Pulsed (experimental) and unpulsed (control) cells were incubated at 37°C under a 5% CO₂ atmosphere. To determine cell attachment ability, the culture medium supernatant and attached cells were collected at 6, 12, 18, and 24 h after a single pulse. The live, dead, and total floating cells in the culture medium supernatant were counted. In addition, the live, dead, and total attached cells were counted after multiple pulses. Total RNA was extracted from the attached cells and reverse transcribed into cDNA. The MIA mRNA expression levels were measured using the cDNA temple via quantitative real-time PCR, with β–actin as the internal control. The experiment was repeated three times (n=3). The results show that a single pulse did not affect the cell attachment ability, cell morphology, and the MIA mRNA expression levels (P=0.8058). Two pulses significantly decreased the cell attachment ability (P=0.014), cell viability (P</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Year dc:date.available

2013

Author dc:creator

• Jia, Hongxia

Contributors dc:contributor

• R. James Swanson
• Christopher J. Osgood
• Lesley H. Greene
• Shu Xiao

• Attachment ability
• B16-F10 cells
• Melanoma inhibitory activity
• Melanoma metastasis
• Nanosecond electric pulses
• Cell Biology
• Medical Biotechnology
• Molecular Biology

Identifier

9781303570155

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:biomedicalsciences_etds-1043